A new book about the royal family has shed light on the real reason King Charles did not attend the christening of his youngest granddaughter Lilibet.

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Meghan is believed to have exchanged letters with the King since 2021 (Image: Getty)

King Charles was unable to find room in his diary for the christening of his youngest granddaughter Lilibet, despite being invited by the Duchess of Sussex.

Prince Harry and Meghan had their daughter christened earlier this year in California surrounded by close friends and older brother Archie.

But neither Prince and Princess of Wales nor the King and Queen were in attendance, with some speculation online suggesting that they had not been invited.

However, new book Endgame by royal biographer Omid Scobie, which has been published in Australia, claims the monarch was indeed invited to celebrate his youngest granddaughter but was unable to find a space in his diary.

But despite the difficult relationship between the King and his youngest son, Scobie suggests that Meghan has exchanged “infrequent” letters with her father-in-law.

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Harry, Meghan and Archie were joined by close friends for Lilibet’s christening (Image: Getty)

It is believed that the King is kept updated on how the children are progressing, with Meghan sharing photos of his grandchildren with the King.

It is believed that letters between the two were exchanged just weeks after Harry and Meghan appeared in Oprah Winfrey’s tell all interview in 2021.

The interview made headlines all over the world after the pair claimed that two senior royals had questioned how dark Archie’s skin would be, whilst his mother who is mixed race was pregnant.

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The King is said to be kept updated on how the children are doing (Image: Getty)

It is believed that Meghan shared the names of the two royals in question in the letters.

The King is understood to have responded to the naming of those said to have made the remarks but is believed to have claimed that there was “no casual prejudice” involved, according to Scobie.

Scobie claims that laws in the UK prevent him from naming the two royals in question.

In his book, Scobie claims that the pair never used the terms ‘racist’ or ‘racism’ and quotes an insider as saying: “The way in which these conversations were had… their tone… revealed lingering unconscious bias and ignorance within the family that needed to be addressed”.